Transmittance (UV - Vis - IR) (ISO 12311)

Eye and Face Protection Equipment Tests

Transmittance (UV - Vis - IR) (ISO 12311)

ISO 12311 standard has been designed by the International Organization for Standardization (ISO) to describe the permeability (UV - Vis - IR) properties and test methods of sunglasses and similar glasses within the scope of eye and face protection equipment. This standard has been published in our country by the Turkish Standards Institute (TSE) with the following title: TS EN ISO 12311 Personal protective equipment - Test methods for sunglasses and similar eye products.

Transmittance (UV - Vis - IR) (ISO 12311)

The main test methods applied to measure the spectrophotometry properties of sunglasses in accordance with the said standard are:

  • Measurement of spectral transmittance
  • Measuring the homogeneity of light transmission
  • Calculation of ultraviolet transmittance
  • Calculation of solar blue-light transmittance
  • Calculation of solar IR transmittance
  • Absolute spectral reflection measurement
  • Absolute light reflection
  • Calculation of the relative visual attenuation section for signal light detection
  • Wide angle dispersion
  • Polarizing filters
  • Photochromic filters

The test methods applied to determine the optical properties of sunglasses in accordance with this standard are:

  • Test method for spherical, astigmatic and prismatic refractive forces
  • Test method for prism imbalance of complete sunglasses or filters covering both eyes
  • Test method for local variation in breaking strength

The following test methods are used to determine the mechanical properties of sunglasses:

  • Test method for minimum robustness of filters
  • Test method for impact resistance of filters
  • Test method for the impact resistance of sunglasses
  • Test method for frame deformation and filter retention
  • Test method for increasing the durability of sunglasses
  • Test method for resistance to solar radiation
  • Test method for ignition resistance
  • Test method of sunglasses frame for sweat resistance

Eye and face protection equipment for businesses by our organization Within the scope of testing services, permeability (UV - Vis - IR) (ISO 12311) testing services are also provided.

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